EP2908503A1 - Procédé de configuration d'un réseau de télécommunication - Google Patents

Procédé de configuration d'un réseau de télécommunication Download PDF

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Publication number
EP2908503A1
EP2908503A1 EP14154902.2A EP14154902A EP2908503A1 EP 2908503 A1 EP2908503 A1 EP 2908503A1 EP 14154902 A EP14154902 A EP 14154902A EP 2908503 A1 EP2908503 A1 EP 2908503A1
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EP
European Patent Office
Prior art keywords
network
network element
information
port
identification information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP14154902.2A
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German (de)
English (en)
Inventor
Christoph Scherer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Telekom AG
Original Assignee
Deutsche Telekom AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Telekom AG filed Critical Deutsche Telekom AG
Priority to EP14154902.2A priority Critical patent/EP2908503A1/fr
Publication of EP2908503A1 publication Critical patent/EP2908503A1/fr
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/30—Types of network names

Definitions

  • the invention relates to a method for the configuration of a telecommunications network.
  • a telecommunications network For the configuration of a telecommunications network, for example, by network implementation procedures (deployments), wherein information relating to a configuration of the telecommunications network are stored in an inventory database. Changes in the structure of the telecommunication network lead to inconsistent (or erroneous) database entries, which can be corrected (or corrected) by a target / actual comparison between a stored network structure information and actual network structure. To achieve this, however, a relatively high effort is required. In addition, such configuration errors - i. especially inconsistent database entries - only to be detected afterwards (for example with a time delay of several hours or days).
  • the invention has for its object to provide an improved method for the configuration of a telecommunications network, which can be responded to inconsistencies between stored network structure information and actual network structure comparatively reliable and fast.
  • the reference information comprises a reference to the (physical or logical) first port of the first network element which is connected to the second (physical or logical) port of the second network element (physically or logically).
  • the second network element comprises a plurality of second ports, wherein the reference information is assigned (uniquely) to that second port of the plurality of second ports, which is connected to the first port of the first network element.
  • limited connectivity level means that the Internet Protocol connection is (potentially) restricted in terms of usage privilege.
  • the IP connection is access restricted, i. the address space for (potentially) reachable IP addresses (relative to the case where the request was routed through the first port) is limited.
  • inconsistencies to be detected during the request - ie, for example, during a dynamic host configuration protocol (DHCP, DHCPv6) request or point-to-point protocol (PPP) request - by evaluating the network structure scheme information, and in particular Real-time response to the inconsistencies.
  • the evaluation is preferably carried out as a function of the error information, wherein the error information is generated in particular by matching the reference information with the actual network structure.
  • the reference information and the request information are transmitted to the network configuration system in the same request message (DHCP request or PPP request).
  • the network management system it is particularly advantageously possible for the network management system to make possible a consistent configuration of the telecommunications network and / or to react to inconsistencies comparatively quickly.
  • inconsistencies between the network structure scheme information and the network structure of the telecommunication network are recognized and in particular the inconsistencies are reacted in real time.
  • real time means a period of, in particular, less than 1000 seconds (s), preferably less than 100 s, more preferably less than 10 s, very particularly preferably less than 1 s.
  • reaction measure is initiated and / or executed within a transactional sequence
  • transactional sequence refers in particular to a synchronous recognition and reaction to the inconsistencies during the assignment of the IP address for the IP Connection relates (ie, the detection and response to inconsistency in an IP assignment are essentially simultaneous).
  • Another object of the present invention is a telecommunications network having a first network element and a second network element, wherein the first network element has a first port and the second network element has a second port, wherein the first port of the first network element is connected to the second port of the second network element wherein the telecommunications network is configured to generate first identification information for identifying the first network element and first network element information with respect to the first port of the first network element, wherein the telecommunications network is configured to store the first identification information and the first network element information in the first network element Telecommunication network for generating a second identification information for identifying the second network element and a second network element information with respect to the second port of the second network element ko nfiguriert, wherein the second identification information is configured such that by combining the second identification information with the second network element information reference information is derivable such that the reference information comprises a reference to the connectivity of the second network element to the first network element, wherein the telecommunications network for storing the second Identification information and the second network element information in
  • schema-driven network management replaces the inventory databases with schemas or equations (network structure scheme information) so that the network structure scheme information (as opposed to the inventory databases) stored in the telecommunication network and the actual network structure of the telecommunication network are consistent.
  • the telecommunication network has a network configuration system - which is also referred to as a control entity - for Internet Protocol (IP) address assignment, which is in particular configured such that the defined network structure scheme information are evaluated by the network configuration system and / or inconsistencies are detected and / or on Inconsistencies are reacted in real time (and thereby, for example, be corrected) .
  • IP Internet Protocol
  • the telecommunication network is configured to perform a checking step by the telecommunication network when sending request information regarding an internet protocol address request for Internet Protocol connection to the telecommunication network, wherein the checking step comprises a check as to whether the reference information transmitted with the request information has been passed over the first port of the first network element referenced by the reference information.
  • the telecommunication network has a network management system, wherein the network management system is configured to receive the error information element from the network configuration system, wherein the network management system comprises network structure scheme information regarding a network structure of the telecommunication network, wherein the network management system for Adjustment of the network structure scheme information with the network structure of the telecommunications network is configured, the network management system is configured in particular for adjustment depending on the error information element and / or the reference information, the network management system is configured in particular for adjustment by means of an in-band network management method.
  • the access node is also referred to as access node.
  • the reference information is preferably a (logical or physical) identifier with which a reference is or may be formed, for example a line identification information (line ID) and / or port identification information (circuit ID) and / or an IP address or an IP prefix.
  • line ID line identification information
  • circuit ID circuit ID
  • IP address IP prefix
  • the present invention also relates to a computer program with program code means, by means of which all steps of the method according to the invention can be carried out when the computer program is executed on at least one programmable device of a telecommunications network.
  • the subject of the present invention is a computer program product with a computer-readable medium and a computer program stored on the computer-readable medium with program code means which are suitable for carrying out all steps of the method according to the invention, if the Computer program is executed on at least one programmable device of a telecommunications network.
  • FIG. 1 schematically a view of a telecommunication network 1 according to the invention is shown, wherein the telecommunication network 1 comprises a first network element 10 and a second network element 20.
  • the first network element 10 is a router, the router being, for example, a router (in particular a broadband access server) associated with an Internet Protocol (IP) core network 1 '(backbone network) of the telecommunications network or another network element.
  • the second network element 20 is an access node (access node) of the telecommunications network 1, for example a Digital Subscriber Line Access Multiplexer (DSLAM).
  • DSLAM Digital Subscriber Line Access Multiplexer
  • a request device 2 is connected to the access node 20, the request for an IP address for the realization of an Internet protocol connection between the request device 2 and the telecommunication network 1 being transmitted from the request device 2 to the telecommunication network 1.
  • the second network element 20 is a router and / or the first network element 10 is an access node or other network elements of the telecommunications network 1 are.
  • the first network element 10 has a plurality of first ports 11, 12,..., 13 (ie interfaces) and the second network element 20 has a plurality of second ports 21, 22,..., 23, wherein a first port 11 of the plurality of first ports 11, 12, ..., 13 of the first network element 10 is connected to a second port 21 of the plurality of second ports 21, 22, ..., 23 of the second network element 20.
  • the plurality of first ports 11, 12, ..., 13 and second ports 21, 22, ..., 23 are each physical ports or logical ports, the logical ports being provided, for example, by logical subnets (eg Virtual Local Area Networks - VLANs ) are formed.
  • the telecommunication network 1 is configured to generate a first identification information for identifying the first network element 10.
  • the first telecommunication network 1 comprises a plurality of first network elements 10, in particular routers, which according to a scheme - i. in particular according to a (defined) network structure scheme information stored in the telecommunication network 1.
  • the router 10 with the name [AB] is connected to another router with the name [BC]
  • the other router with the name [BC] is connected to yet another router with the name [CD] etc.
  • the topology of the telecommunications network 1 is shown in the scheme in particular.
  • a method of topology discovery is used (for example, using so-called “topology discovery protocols") wherein the result of the topology discovery process is directly aligned with the network structure scheme information.
  • the telecommunications network 1 is configured to generate a first network element information with respect to the first port 11 of the first network element 10.
  • the first network element information comprises a first port identification information, in particular a port number.
  • the plurality of (physical) ports 11, 12,..., 13 of the first network element 10 are numbered (unambiguously) here (for example with the numbers 01-99).
  • the logical ports (which are formed, for example, by VLANs) are preferably numbered consecutively.
  • the first network element 10 is configured such that the first identification information and / or the first network element information in a Request (ie in a DHCP or PPP request) to the telecommunications network 1 (in particular to the network configuration system 30) forwarded or mediated (so-called relay function).
  • a Request ie in a DHCP or PPP request
  • the telecommunications network 1 in particular to the network configuration system 30
  • relay function mediated
  • the first identification information generated by the telecommunication network 1 and the generated first network element information are assigned to the first network element 10 and stored in a memory element of the first network element 10.
  • the telecommunication network 1 is further configured such that a second identification information for identifying the second network element 20 and a second network element information with respect to the second port 21 of the second network element 20 is generated.
  • the second identification information is a second host name of the second network element.
  • the second network element information comprises a second port identification information, in particular a port number.
  • This preferably means that the plurality of (physical) ports 21, 22,..., 23 of the second network element 20 are (clearly) numbered here.
  • the physical ports of the second network element are numbered and, for example, mapped (i.e., mapped) to the corresponding VLANs 1: 1 (the first port 11 of the first port 11 connected to the second port 21) of the first network element.
  • the telecommunications network 1 comprises a multiplicity of second network elements 20, 20 '.
  • FIG. 2 is exemplified that the second network element 20 and another second network element 20 'are connected to the first network element 10.
  • the second identification information is configured in such a way that reference information can be derived by combining the second identification information with the second network element information such that the reference information comprises a reference to the connectivity of the second network element 20 to the first network element 10.
  • the second network element 20 is connected to the first port 11 with a uniquely assigned first port identification number and the further second network element 20 'is connected to a further first port 12 with a uniquely assigned further first port identification number (for example port number "02").
  • the second identification information for example host name "AB01" of the second network element 20 (access node 20) is preferred by combining the first identification information (router name "[AB]") of the first network element 10 (router 10) with the port identification number (port number "). 01 ”) of the first port.
  • the further second host name "AB02" is assigned to the further second network element 20 'connected to the further first port 12.
  • the second identification information and the second network element information are assigned to the second network element 20 and stored in a memory element of the second network element 20.
  • the second network element 20 is configured in such a way that the second identification information and / or the second network element information are forwarded or relayed to the telecommunication network 1 (in particular to the network configuration system 30) in the case of a request (ie in the case of a DHCP or PPP request) ( so-called relay function).
  • a request ie in the case of a DHCP or PPP request
  • relay function so-called relay function
  • the telecommunications network 1 here has a network configuration system 30, which comprises, for example, a DHCP server or PPP server.
  • a network configuration system 30 comprises, for example, a DHCP server or PPP server.
  • a check is made as to whether a circuit ID AB01 eth 0/1: 01 for a request for the IP address (ie for a PPP or DHCP request) via the first port 11 (with the port number "01") of the first network element 10 (the router with the name "[AB]”) was performed. If this is the case, an IP address is assigned by the telecommunications network.
  • a specific error policy (fault information element) is configured for the first port 11 (of the router 10) and transmitted to a network management system 40 (for example, an operations support system - OSS) of the telecommunications network 1 and, in particular, the Internet protocol connection according to a restricted Connected connectivity (eg walled garden).
  • a network management system 40 for example, an operations support system - OSS
  • the Internet protocol connection according to a restricted Connected connectivity (eg walled garden).
  • the IP connection is made in accordance with the limited connectivity level such that an HTTP (HTTP) request is redirected to a portal (i.e., a web page related to the network management system 40, for example).
  • HTTP HTTP
  • a portal i.e., a web page related to the network management system 40, for example.
  • HTTP HTTP
  • the IP connection is configured according to the limited connectivity level so that individual or all (HTTP) requests are redirected (to the portal).
  • IPv6 IP Version 6
  • WAN wide area network
  • LAN local area network
  • RA Router Advertisement
  • DHCPv6 - stateless IP Version 6

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
EP14154902.2A 2014-02-12 2014-02-12 Procédé de configuration d'un réseau de télécommunication Ceased EP2908503A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14154902.2A EP2908503A1 (fr) 2014-02-12 2014-02-12 Procédé de configuration d'un réseau de télécommunication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14154902.2A EP2908503A1 (fr) 2014-02-12 2014-02-12 Procédé de configuration d'un réseau de télécommunication

Publications (1)

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EP2908503A1 true EP2908503A1 (fr) 2015-08-19

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EP14154902.2A Ceased EP2908503A1 (fr) 2014-02-12 2014-02-12 Procédé de configuration d'un réseau de télécommunication

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030112812A1 (en) * 2000-02-07 2003-06-19 Rene Duranton Method and device for automatically attributing addresses to a plurality of modules interconnected by a communication network with complex topology
WO2009036804A1 (fr) * 2007-09-20 2009-03-26 Telefonaktiebolaget L M Ericsson (Publ) Routage de règles dans un réseau de communications
US20120195231A1 (en) * 2011-01-28 2012-08-02 Francisco Jose Rojas Fonseca Dynamic name generation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030112812A1 (en) * 2000-02-07 2003-06-19 Rene Duranton Method and device for automatically attributing addresses to a plurality of modules interconnected by a communication network with complex topology
WO2009036804A1 (fr) * 2007-09-20 2009-03-26 Telefonaktiebolaget L M Ericsson (Publ) Routage de règles dans un réseau de communications
US20120195231A1 (en) * 2011-01-28 2012-08-02 Francisco Jose Rojas Fonseca Dynamic name generation

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